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I am in the situation where I need to use Cyclone II and Cylone IV FPGA. I found the latest Quartus II version doesn't support Cyclone II. So what version can I use (12.0?) and can I get the license for this older version? or can I purchase the license of latest software and "downgrade" it to older version?
Thanks LeonLink Copied
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--- Quote Start --- I am in the situation where I need to use Cyclone II and Cylone IV FPGA. I found the latest Quartus II version doesn't support Cyclone II. So what version can I use (12.0?) and can I get the license for this older version? or can I purchase the license of latest software and "downgrade" it to older version? Thanks Leon --- Quote End --- I use Quartus 13.0sp1 to support my use of the Cyclone II part. The free version works just fine, no license needed. For Cyclone IV I happen to use Quartus 16.0 (again the free version) and the newer version 17.x still support this device family I believe. You can download the above versions from the Altera software tools download pages.
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However the unlicensed Quartus cannot generate the programming file (.sof), can it?
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--- Quote Start --- However the unlicensed Quartus cannot generate the programming file (.sof), can it? --- Quote End --- Yes it can. It would make no sense at all if it couldn't. In my particular case I use the quartus_cpf tool to pack the generated .sof file into a .jic file so I can use the programmer to program the attached flash config device thru JTAG.
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The free quartus tools only support the smaller cyclone parts.
For larger parts (or stratix or arria) you will need a paid licence. But a licence should cover you for all quartus versions.
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